When did the term 'Black Friday' first become widely used to describe the day after Thanksgiving shopping phenomenon?

The holiday shopping season kicks off with one of the most famous retail phenomena in history. Black Friday has evolved from a local term to a global shopping festival that shapes retail strategies worldwide. But how much do you know about the origins of this massive retail event? Test your knowledge about the historical roots of this shopping tradition that changed consumer behavior forever.

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1950s, when Philadelphia police used it to describe the chaos of shoppers and tourists flooding the city
1930s, during the Great Depression, when retailers finally saw their accounts go from 'in the red' to 'in the black'
1980s, when major retailers launched coordinated nationwide sales campaigns for the first time
1970s, when it became the single biggest shopping day of the year in the United States